🎮 My Playground
🎮
3D Rubik's Cube solver and simulator.
Play vs friend or AI, with puzzles and analysis.
Pop falling balls for points. Fast, fun, and mobile-friendly!
Interactive playing card deck simulation. Shuffle, deal, and flip
cards!
Decorate a Christmas tree with drag-and-drop ornaments!
Interactive Advent calendar with daily surprises and facts!
Match snowflake pairs in this memory puzzle game!
Match zodiac animal pairs. Clear the board to advance!
Match pairs of lucky characters. Clear the board to advance!
Drag dishes onto the round table. Double-click to remove.
Guess the riddle! Type your answer or reveal it.
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Pick random numbers, exclude numbers, and more!
Generate Secret Santa assignments with exclusion rules!
Countdown timer to Christmas or any date with timezone support!
Countdown to Lunar New Year (初一) with timezone and zodiac!
Split your budget into lucky amounts (88, 168, 600…). Add recipients and copy your list.
Tally red envelopes fast. Tap amount to add, undo, recent list. For kids counting 利是.
Create spring couplets (橫批 + 上聯 + 下聯) or single 福. Download PNG.
Track gifts, recipients, and budget for your Christmas shopping!
Offline-first travel expense tracker. Budget, currencies, and charts.
Home Expense Book
Household expenses on your phone: categories, paid/unpaid bills, history with undo. PWA, local only.
Responsive piano with keyboard controls and MIDI playback.
Parse and analyze URLs into their components.
Paste JSON and auto-format with indentation.
Score calculator for tile-based number games with multiple save
slots.
General Scoreboard
Universal scoreboard for poker, mahjong, and more. Four scoring modes, on-screen numpad, localStorage.
Generate memorable passphrases (word list) or random strings. Copy to clipboard.
Convert length, volume, or mass into football pitches, cups of coffee, elephants, etc.
Draw a random fortune. Fun, light-hearted messages (not fortune-telling).
Roll 1–6 dice (custom sides) or pick a random name from a list.
Enter options and spin the wheel to pick one randomly (e.g. what to eat).
Countdown to any date and time. Shareable link with date in URL.
Quiz on 歇後語 and 成語. Multiple choice, bilingual hints.
Create 5×5 Bingo cards from your words. Shuffle, tick, and print.